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g.mm units problem

Dan888
1-Newbie

g.mm units problem

Hi - see attached.

I'd like to show OOB with units of gram-millimeters (g.mm).

When I change the units from m.kg to g.mm it adds kg.s^2/m.

Can this be avoided?

1 ACCEPTED SOLUTION

Accepted Solutions
AndyWesterman
4-Participant
(To:Dan888)

Instead of g*mm try gm*mm

regards

Andy

View solution in original post

5 REPLIES 5
AndyWesterman
4-Participant
(To:Dan888)

Instead of g*mm try gm*mm

regards

Andy

MikeArmstrong
5-Regular Member
(To:Dan888)

Gram is defined in Mathcad as gm not g. G is the gravitational constant.

Dan888
1-Newbie
(To:Dan888)

Thanks

As gm is not an SI unit, I have redefined g as gm using the global definition.

MikeArmstrong
5-Regular Member
(To:Dan888)

I would recommend against doing that.

Fred_Kohlhepp
23-Emerald I
(To:Dan888)

Mathcad recognises "g" as the value of gravity at the earth's surface (9.8 m/sec^2), which is why the you got "kg8s^2/m added to your answer at the start.

You can redefine g to be grams (g = gm) but it's better (IMHO) just to use the "gm" built in.

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